/Engine/Plugins/FX/Niagara/Source/NiagaraEditor/Public/ViewModels/HierarchyEditor/NiagaraHierarchyViewModelBase.h
typedef TBaseDelegate_OneParam< void, [TSharedPtr](API\Runtime\Core\Templates\TSharedPtr)< [FNiagaraHierarchySectionViewModel](API\Plugins\NiagaraEditor\ViewModels\HierarchyEditor\FNiagaraHierarch-_10) > Section > FOnSectionActivated